Behind the gain is not only advanced software, but also an entirely new type of processor that Google developed.

The chip is optimized for Google's machine learning program Tensorflow, and thus can get away with using many fewer transistors per operation says the company.

The processor fits into the drive bay in a server rack.

One chip dedicated to effectively repeat the same simple procedure - and Google believes that there is no link at all between the products.

It produces or playing, he says to IDG News.

Google say they do not plan to sell the TPU you to other companies, so it may be some time before we find out how the mysterious processor actually works.

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